| AGI | the Arabidopsis Genome Initiative |
| APS | 5’-adenylyl sulfate |
| APR | APS reductase |
| Arabidopsis | Arabidopsis thaliana |
| CIA | cytosolic iron-sulfur cluster assembly |
| Fe/S | iron-sulfur |
| Grx | glutaredoxin |
| Moco | molybdenum cofactor |
| MPT | molybdopterin |
| NFS | nitrogen fixation protein for sulfur transfer |
| RHD | rhodanese |
| S-Moco | sulfur-bound Moco |
| SUF | sulfur utilization factor |
| SULTR | sulfate transporter |
| Trx | thioredoxin |
| URM | ubiquitin-related modifier |
| UBL | ubiquitin-like protein |
| UBA | ubiquitin-activating enzyme-like protein |